a72609cec0
Actually this needs changing to use /usr/sbin/etcupdate (or similar), but the script needs fixing first. Might be better for sysinst to have its own copy, gets to be fun to run because you have to pull the commands from the target FS.
284 lines
6.9 KiB
C
284 lines
6.9 KiB
C
/* $NetBSD: upgrade.c,v 1.37 2003/07/08 16:12:18 dsl Exp $ */
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/*
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* Copyright 1997 Piermont Information Systems Inc.
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* All rights reserved.
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*
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* Written by Philip A. Nelson for Piermont Information Systems Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Piermont Information Systems Inc.
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* 4. The name of Piermont Information Systems Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/* upgrade.c -- upgrade an installation. */
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#include <stdio.h>
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#include <curses.h>
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#include <errno.h>
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#include "defs.h"
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#include "msg_defs.h"
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#include "menu_defs.h"
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/*
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* local prototypes
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*/
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void check_prereqs (void);
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int save_etc (void);
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int merge_etc (void);
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int save_X (void);
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int merge_X (void);
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/*
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* Do the system upgrade.
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*/
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void
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do_upgrade(void)
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{
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msg_display(MSG_upgradeusure);
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process_menu(MENU_noyes, NULL);
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if (!yesno)
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return;
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get_ramsize();
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if (find_disks(msg_string(MSG_upgrade)) < 0)
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return;
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if (md_pre_update() < 0)
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return;
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process_menu(MENU_distset, NULL);
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/* if we need the user to mount root, ask them to. */
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if (must_mount_root()) {
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msg_display(MSG_pleasemountroot, diskdev, diskdev, diskdev, diskdev);
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process_menu(MENU_ok, NULL);
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return;
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}
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if (!fsck_disks())
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return;
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/*
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* Save X symlink, ...
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*/
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if (save_X())
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return;
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/*
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* Move target /etc -> target /etc.old so existing configuration
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* isn't overwritten by upgrade.
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*/
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if (sets_selected & SET_ETC && save_etc()) {
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merge_X();
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return;
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}
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/* Do any md updating of the file systems ... e.g. bootblocks,
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copy file systems ... */
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if (!md_update())
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return;
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/* Done with disks. Ready to get and unpack tarballs. */
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msg_display(MSG_disksetupdoneupdate);
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getchar();
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wrefresh(curscr);
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wmove(stdscr, 0, 0);
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wclear(stdscr);
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wrefresh(stdscr);
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if (get_and_unpack_sets(MSG_upgrcomplete, MSG_abortupgr) != 0)
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return;
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/* Copy back any files we should restore after the upgrade.*/
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if (sets_selected & SET_ETC)
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merge_etc();
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merge_X();
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sanity_check();
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}
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/*
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* save target /etc files.
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* if target /etc.old exists, print a warning message and give up.
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* otherwise move /etc into target /etc.old, and then copy
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* back files we might want during the installation -- in case
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* we are upgrading the target root.
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*/
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int
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save_etc(void)
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{
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if (target_dir_exists_p("/etc.old")) {
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msg_display(MSG_etc_oldexists);
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process_menu(MENU_ok, NULL);
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return EEXIST;
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}
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#ifdef DEBUG
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printf("saving /etc as /etc.old...");
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#endif
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/* Move target /etc to /etc.old. Abort on error. */
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mv_within_target_or_die("/etc", "/etc.old");
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/* now make an /etc that should let the user reboot. */
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make_target_dir("/etc");
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#ifdef DEBUG
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printf("Copying essential files back into new /etc...");
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#endif
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/* essential stuff */
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cp_within_target("/etc.old/ld.so.cache", "/etc/");
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cp_within_target("/etc.old/ld.so.conf", "/etc/");
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cp_within_target("/etc.old/resolv.conf", "/etc/");
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/*
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* do NOT create fstab so that restarting an incomplete
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* upgrade (eg., after power failure) will fail, and
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* force the user to check and restore their old /etc.
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*/
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/* general config */
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cp_within_target("/etc.old/rc", "/etc/");
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cp_within_target("/etc.old/rc.conf", "/etc/");
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cp_within_target("/etc.old/rc.local", "/etc/");
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/* network config */
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cp_within_target("/etc.old/ifconfig.*", "/etc/");
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/* these should become parts of rc.conf */
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cp_within_target("/etc.old/myname", "/etc/");
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cp_within_target("/etc.old/mygate", "/etc/");
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cp_within_target("/etc.old/defaultdomain", "/etc/");
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/* old-style network config */
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cp_within_target("/etc.old/hostname.*", "/etc/");
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return 0;
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}
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/*
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* Save X symlink to X.old so it can be recovered later
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*/
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int
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save_X(void)
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{
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/* Only care for X if it's a symlink */
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if (target_symlink_exists_p("/usr/X11R6/bin/X")) {
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if (target_symlink_exists_p("/usr/X11R6/bin/X.old")) {
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msg_display(MSG_X_oldexists);
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process_menu(MENU_ok, NULL);
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return EEXIST;
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}
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#ifdef DEBUG
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printf("saving /usr/X11R6/bin/X as .../X.old ...");
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#endif
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/* Move target .../X to .../X.old. Abort on error. */
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mv_within_target_or_die("/usr/X11R6/bin/X",
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"/usr/X11R6/bin/X.old");
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}
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return 0;
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}
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/*
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* Merge back saved target /etc files after unpacking the new
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* sets has completed.
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*/
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int
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merge_etc(void)
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{
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/* just move back fstab, so we can boot cleanly. */
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cp_within_target("/etc.old/fstab", "/etc/");
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return 0;
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}
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/*
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* Merge back saved target X files after unpacking the new
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* sets has completed.
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*/
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int
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merge_X(void)
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{
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if (target_symlink_exists_p("/usr/X11R6/bin/X.old")) {
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/* Only move back X if it's a symlink - we don't want
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* to restore old binaries */
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mv_within_target_or_die("/usr/X11R6/bin/X.old",
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"/usr/X11R6/bin/X");
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}
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return 0;
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}
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/*
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* Unpacks sets, clobbering existing contents.
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*/
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void
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do_reinstall_sets(void)
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{
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unwind_mounts();
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msg_display(MSG_reinstallusure);
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process_menu(MENU_noyes, NULL);
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if (!yesno)
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return;
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if (find_disks(msg_string(MSG_reinstall)) < 0)
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return;
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/* if we need the user to mount root, ask them to. */
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if (must_mount_root()) {
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msg_display(MSG_pleasemountroot, diskdev, diskdev, diskdev, diskdev);
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process_menu(MENU_ok, NULL);
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return;
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}
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if (!fsck_disks())
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return;
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fflush(stdout);
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wrefresh(curscr);
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wmove(stdscr, 0, 0);
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touchwin(stdscr);
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wclear(stdscr);
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wrefresh(stdscr);
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/* Unpack the distribution. */
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if (get_and_unpack_sets(MSG_unpackcomplete, MSG_abortunpack) != 0)
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return;
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sanity_check();
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}
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